A liquid-cooled Energy Storage System (ESS) is a battery solution that uses circulating coolant to extract heat directly from battery cells, maintaining precise temperature control across the entire pack. Compared with air-cooled systems, liquid-cooling offers superior efficiency, tighter thermal balance, and longer battery life—especially in large-scale or high-power applications.

As global deployments of solar farms, wind projects, and data center power systems expand, energy storage installations have become larger and more demanding. This trend is accelerating the adoption of liquid-cooled ESS products, including systems such as Dagong ESS's 215kWh Liquid-Cooled ESS, 372kWh Liquid-Cooled ESS, and 3.35MWh Liquid-Cooled ESS Container, all of which rely on advanced thermal management.

Types of Liquid-Cooled ESS

• Modular Liquid-Cooled ESS (100–400kWh)

Designed for commercial and industrial projects. Systems such as the 372kWh Liquid-Cooled ESS provide high cycle life and stable operation even under heavy load.

• Containerized Liquid-Cooled ESS (1–5MWh)

Large-scale battery containers used in utility projects, microgrids, and renewable integration. For example, the 3.35MWh Liquid-Cooled ESS Container is widely used in solar-plus-storage fields, grid frequency regulation, and peak shaving.

• CTP-Based Liquid-Cooled ESS

Modern Cell-to-Pack (CTP) structures integrate cooling plates directly with battery cells, improving heat transfer and increasing energy density.

Features of Liquid-Cooled ESS

• Precise Temperature Control (±2°C)

Liquid-cooling maintains uniform temperatures across all battery modules, improving safety and extending the life of the system.

• High Energy Density

By reducing spacing and improving heat dissipation, liquid-cooled ESS supports larger CTP battery configurations for powerful container units.

• Better Cycle Life & Efficiency

Stable thermal environments reduce cell stress, enabling 8000+ cycles and over 15 years of service life.

• Safety Against Thermal Runaway

Liquid cooling reduces the risk of hotspots and prevents cascading failures, especially important in large-scale ESS containers.

• Suitable for Extreme Environments

Liquid-cooled ESS performs reliably in high-temperature regions such as the Middle East, Africa, Southeast Asia, and Southern US.

Applications of Liquid-Cooled ESS

• Utility-Scale Solar and Wind Farms

Liquid-cooled ESS containers provide grid stability, renewable smoothing, and energy shifting.

• Data Centers and AI Computing Facilities

With rapidly increasing power demand, data centers rely on stable ESS solutions. Systems like the 3.35MWh Liquid-Cooled ESS Container offer dependable backup and peak reduction.

• Industrial and Manufacturing Facilities

Factories with high-load machinery benefit from efficient peak shaving and load balancing using 372kWh Liquid-Cooled ESS units.

4. Microgrids and Remote Power Systems

Liquid-cooled ESS ensures round-the-clock reliability for island grids, mining sites, and telecom towers.

5. EV Charging Stations

Fast-charging hubs deploy liquid-cooled ESS to reduce grid impact and stabilize charging performance.

Price of Liquid-Cooled ESS 

The cost of a liquid-cooled energy storage system depends on capacity, cooling architecture, battery configuration, and project requirements. Prices also vary due to global raw material fluctuations, engineering standards, and integration needs. Suppliers typically offer detailed quotations based on system size, installation environment, and certification demands.

How to Select a Liquid-Cooled ESS for Your Project?

• Determine Energy & Power Requirements

Commercial users may need 200–400kWh systems, while utilities often require 1–5MWh containers.

• Evaluate Cooling Performance

Look for systems with ±2°C consistency, efficient coolant flow design, and multi-layer thermal protection.

• Check Certifications

Ensure compliance with CE, UN38.3, MSDS, and grid-level safety standards.

• Consider System Modularity

Solutions like Dagong ESS’s 215kWh, 372kWh, and 3.35MWh units support scalable configuration for different project sizes.

• Review Monitoring & Safety Features

Advanced BMS, fire detection, real-time diagnostics, and integrated EMS are essential.

How Long Does a Liquid-Cooled ESS Last?

Modern liquid-cooled ESS solutions typically operate for:

• 8000+ charge cycles

• 15–20 years of service life

• Enhanced thermal consistency ensures low degradation over time

Systems such as the 372kWh Liquid-Cooled ESS and 3.35MWh Container ESS maintain high capacity retention even after long-term operation due to optimized cooling.

The Supplier of Liquid-Cooled ESS

A reliable ESS supplier should provide:

• Mature liquid-cooling architecture

• Flexible capacity options from 200kWh to multi-MWh

• Advanced CTP battery systems

• Customized solutions for solar farms, microgrids, and industrial users

• Full certifications and engineering support

Manufacturers like Dagong ESS deliver a complete range of liquid-cooled storage systems—covering C&I modules and utility-scale container ESS—designed for high performance, long life, and global deployment readiness.